CN217422189U - Radial sealing device of gas turbine starter - Google Patents
Radial sealing device of gas turbine starter Download PDFInfo
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- CN217422189U CN217422189U CN202221511117.2U CN202221511117U CN217422189U CN 217422189 U CN217422189 U CN 217422189U CN 202221511117 U CN202221511117 U CN 202221511117U CN 217422189 U CN217422189 U CN 217422189U
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- limiting
- blank pressing
- gas turbine
- subassembly
- graphite
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Abstract
The utility model discloses a radial sealing device of a gas turbine starter, which comprises a blank pressing component and a limiting base, wherein the limiting base is provided with a limiting cavity for limiting the movement of the graphite sealing component and a blank pressing cavity for limiting the movement of the blank pressing component, the contact part of the blank pressing component and the limiting base is matched with the shape of the blank pressing cavity, and the contact part of the blank pressing component and the limiting base is provided with a lower pressing sheet for extruding the graphite sealing component; because spacing chamber is close to the blank pressing chamber setting in this scheme, when graphite obturating assembly placed into spacing chamber, the blank pressing assembly can be placed and act on graphite obturating assembly through preforming down after the blank pressing intracavity, through the control to the frock size strictness, has guaranteed the deformation degree of obturating the locking plate position, improves the subassembly qualification rate of obturating, reduces this process to the requirement of maintenance operating personnel skill level, has reduced the maintenance efficiency of product by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of the assembly of engine parts and specifically relates to a radial device of obturaging of gas turbine starter.
Background
In the process of repairing the existing radial sealing device of the fuel turbine starter, a front sealing shell of a core machine rotor is downwards pressed by four sheets of protruding materials to play a role of a safety locking plate, the safety symmetrical locking edge sinks by 0.4mm, and the deformation degree is difficult to control by manual pressing.
In the repair process of the gas turbine starter, the graphite pieces in the front and rear graphite sealing assemblies need to be replaced. As shown in fig. 1-2, the graphite sealing assembly comprises a housing, a circumferential spring assembly, a wave spring assembly, and a cover plate. Wherein circumference spring and ripples spring subassembly are responsible for fixing the graphite part, and protruding material in four places on the shell plays the insurance locking plate effect through pressure deformation.
Because the safety symmetric lockstitching must sink 0.4mm strictly according to the technological requirements, if the size has deviation in the assembling process, the pressing strength of a wave spring in the sealing device can be influenced, so that the sealing performance between the graphite piece and the engine rotor is influenced, and the front sealing oil leakage of the engine can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at: aiming at the problems, the radial sealing device of the gas turbine starter is provided, and the problem that the deformation degree is difficult to control by manual pressing in the repair process of the radial sealing device of the fuel turbine starter in the prior art is solved.
The utility model discloses a realize through following scheme:
a radial sealing device of a gas turbine starter comprises: including blank pressing subassembly and spacing base, be provided with the spacing chamber that restriction graphite seal assembly removed on the spacing base and the blank pressing chamber that restriction blank pressing subassembly removed, the blank pressing subassembly with the contact site of spacing base with the shape looks adaptation in blank pressing chamber, be provided with on blank pressing subassembly and the spacing base contact site and be used for the extruded lower holding down piece of graphite seal assembly, when graphite seal assembly put into spacing chamber, the lower holding down piece of blank pressing subassembly can contact the extrusion to the protruding strip of graphite seal assembly.
Based on the structure of the radial sealing device of the gas turbine starter, the limiting base comprises a first limiting support, a second limiting support, a limiting gasket and a bottom plate; the first limiting support and the second limiting support are symmetrically arranged on the bottom plate, the limiting cavity is arranged between the first limiting support and the second limiting support, a through hole is formed in the limiting cavity, a first bearing groove and a second bearing groove are respectively formed in the positions, close to the limiting cavity, of the first limiting support and the second limiting support, and the two bearing grooves form an edge pressing cavity; the limiting gasket is arranged in the bearing groove.
Based on above-mentioned gas turbine starter's radial structure of obturating device, first accept the groove with the distance that the second accepted the groove and formed is not less than the length of blank pressing subassembly and blank pressing chamber contact site.
Based on above-mentioned structure of radial device of obturating of gas turbine starter, accept the groove and be the rectangular channel, spacing gasket is the shape with blank pressing subassembly looks adaptation, spacing gasket sets up and accepts between groove and the blank pressing subassembly.
Based on the structure of the radial sealing device of the gas turbine starter, the edge pressing assembly comprises the stress column and the bearing plate, the stress column is arranged at one end of the bearing plate, and the lower pressing sheet is arranged on the end face, far away from the stress column, of the bearing plate.
Based on the structure of the radial sealing device of the gas turbine starter, the stress column is arranged at the center of the length direction of the bearing plate.
Based on the structure of the radial sealing device of the gas turbine starter, the lower pressing piece is at least arranged to be 2 pieces on the end face of the bearing plate, the lower pressing piece is arranged to be of an arc-shaped structure, and the radian of the lower pressing piece is matched with the radian of the protruding strips of the graphite sealing assembly.
Based on the structure of the radial sealing device of the gas turbine starter, the lower pressing sheet is symmetrically arranged along the center of the bearing plate.
Based on the structure of the radial sealing device of the gas turbine starter, the sum of the height of the lower pressing sheet and the height of the shell is 0.4mm, and the difference between the height of the lower pressing sheet and the height of the limiting cavity is 0.4 mm.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. because spacing chamber is close to the blank pressing chamber setting in this scheme, when graphite obturating subassembly was placed into spacing chamber, the blank pressing subassembly can be placed and act on graphite obturating subassembly through preforming down after the blank pressing intracavity, through the strict control to the frock size, has guaranteed the deformation degree of the locking plate position of obturating, improves the subassembly qualification rate of obturating, reduces this process and to the requirement of maintenance operating personnel skill level, has reduced the maintenance efficiency of product by a wide margin.
2. The state after the assembly spare part can effectively be inspected to this scheme, improves maintenance operating personnel work efficiency, reduces the maintenance damage rate, has reduceed maintenance quality risk, has increased the safety in production operability. The device is simple and reasonable in structure and convenient to operate, and effectively improves the production efficiency and the applicability and the conformity during working.
Drawings
FIG. 1 is a schematic top view of a graphite seal assembly;
FIG. 2 is a side view schematic of the graphite seal assembly;
FIG. 3 is a schematic side view of the whole structure of the present invention;
fig. 4 is a schematic top view of the whole structure of the present invention;
description of the drawings: 1. a blank pressing component; 2. a limiting base; 3. a housing; 4. a cover plate; 5. a raised strip; 6. a graphite seal assembly; 11. a stress column; 12. a force bearing plate; 13. pressing the mixture downwards; 21. a first limit support; 22. a second limiting support; 23. a limiting gasket; 24. a limiting cavity; 25. a base plate; 26. a through hole; 27. a first receiving groove; 28. a second receiving groove.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Example 1
As shown in fig. 3 to 4, the utility model provides a technical solution:
the utility model provides a radial device of obturating of gas turbine starter, including blank pressing subassembly 1 and limiting base 2, limiting base 2 is last to be provided with the spacing chamber 24 that the subassembly 6 of the graphite of restriction obturated removed, and the blank pressing chamber that the subassembly 1 of restriction blank pressing removed, blank pressing subassembly 1 and limiting base 2's contact site and the shape looks adaptation in blank pressing chamber, be provided with on blank pressing subassembly 1 and the 2 contact site of limiting base and be used for the lower holding down piece 13 to the 6 extrudees of the subassembly 6 of the graphite of obturating, when the subassembly 6 of the graphite of obturating was placed into limiting base 24, blank pressing subassembly 1's lower holding down piece 13 can contact extrusion to the protruding strip 5 of the subassembly 6 of the graphite of obturating.
Based on above-mentioned structure, spacing chamber 24 through spacing base 2 carries on spacingly to graphite obturating subassembly 6, makes things convenient for blank holder subassembly 1 to push down graphite obturating subassembly 6, extrudees blank holder subassembly 1's protruding strip 5 through lower preforming 13 on the blank holder subassembly 1, makes final fashioned graphite obturating subassembly 6 accord with predetermined specification.
As an example, the restraining base 2 may include a first restraining support 21, a second restraining support 22, a restraining gasket 23, and a bottom plate 25; the first limiting support 21 and the second limiting support 22 are symmetrically arranged on the bottom plate 25, the limiting cavity 24 is arranged between the first limiting support 21 and the second limiting support 22, a through hole is formed in the limiting cavity 24, a first bearing groove 27 and a second bearing groove 28 are respectively arranged on the first limiting support 21 and the second limiting support 22 close to the limiting cavity 24, and the two bearing grooves form an edge pressing cavity; the spacing washer 23 is arranged in the receiving groove.
Based on above-mentioned structure, because spacing chamber 24 is close to the setting of blank pressing chamber, when graphite seal assembly 6 placed into spacing chamber 24, blank pressing assembly 1 can be placed and act on graphite seal assembly 6 through preforming 13 down after the blank pressing intracavity, through the control to the frock size is strict, the deformation degree of seal locking plate position has been guaranteed, improve the subassembly qualification rate of obturating, reduce this process to the requirement of maintenance operating personnel skill level, the maintenance efficiency of product has been reduced by a wide margin.
By way of example, the first receiving groove 27 and the second receiving groove 28 form a distance no less than the length of the contact portion of the blank holder assembly 1 with the blank holder cavity.
Based on above-mentioned structure, the length in blank pressing chamber is longer than blank pressing subassembly 1's tip, can reserve out spacing gasket 23's surplus, also can increase or reduce unilateral spacing gasket 23's quantity according to the demand simultaneously, makes blank pressing subassembly 1 finely tune to this carries out thin processing operation more to graphite assembly 6's protruding strip 5 that seals.
As an example, the receiving groove is a rectangular groove, the limiting gasket 23 is in a shape matched with the blank holder assembly 1, and the limiting gasket 23 is arranged between the receiving groove and the blank holder assembly 1.
Based on above-mentioned structure, can be that blank pressing subassembly 1 can stabilize more and smooth and easy place go into the blank pressing chamber through spacing gasket 23, owing to carry out extrusion through blank pressing subassembly 1 to the protruding strip 5 of graphite sealing subassembly 6 and need the external force that enlarges, can prevent first spacing support 21, the spacing support 22 of second to a certain extent from being destroyed through spacing gasket 23, reduced the later maintenance cost and maintained the degree of difficulty.
As an example, the hold-down assembly 1 may include a force-bearing column 11 and a force-bearing plate 12, the force-bearing column 11 is disposed on one end of the force-bearing plate 12, and the lower hold-down piece 13 is disposed on the end face of the force-bearing plate 12 far from the force-bearing column 11.
In a preferred embodiment, the force-receiving column 11 is provided at the center of the force-receiving plate 12 in the longitudinal direction, and when the force-receiving column 11 is applied by an external force, the force-receiving column 11 can transmit the force to the force-receiving plate 12 more uniformly.
As an example, the lower pressing sheet 13 is set to be at least 2 sheets on the end face of the bearing plate 12, the lower pressing sheet 13 is set to be an arc structure, and the radian of the lower pressing sheet 13 is matched with the radian of the convex strip 5 of the graphite sealing assembly 6, so that the graphite sealing assembly 6 is placed in the limiting cavity 24, and the lower pressing sheet 13 can be in contact with the convex strip 5 of the graphite sealing assembly 6.
The lower pressing sheets 13 are symmetrically arranged along the center of the bearing plate 12, the lower pressing sheets 13 can be 2 sheets symmetrically arranged along the bearing plate 12, or 2 small lower pressing sheets 13 can be arranged on one side, and the 2 small lower pressing sheets 13 are 4 sheets symmetrically arranged along the bearing plate 12.
The graphite sealing assembly 6 in the scheme is shown in fig. 1 and fig. 2 and comprises a shell 3, a circumferential spring assembly, a wave spring assembly, a cover plate 4 and a protruding strip 5. Wherein circumference spring and ripples spring subassembly are responsible for fixing the graphite spare, set up and inboard, and protruding strip 5 sets up along outside upper edge.
As an example, the sum of the height of the lower pressing sheet 13 and the height of the housing 3 is 0.4mm, so that when the bearing surface is tightly contacted with the first bearing groove 27 and the second bearing groove 28, the lower pressing sheet 13 can just press the protruding strip 5 down by 0.4mm, the assembly requirement is met, meanwhile, the operation does not need to depend on manual experience, and the high efficiency of the operation is ensured.
In the scheme, the graphite sealing component 6 is a molded product in the prior art, and the length of the convex strip 5 is prefabricated according to relevant regulations. The scheme improves the original manual processing scheme into the precise mechanical matching, and reduces the dependence on manual experience.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (9)
1. The utility model provides a radial device of obturating of gas turbine starter for seal the suppression to graphite obturating subassembly, its characterized in that: including blank pressing subassembly and spacing base, be provided with the spacing chamber that restriction graphite seal assembly removed on the spacing base and the blank pressing chamber that restriction blank pressing subassembly removed, the blank pressing subassembly with the contact site of spacing base with the shape looks adaptation in blank pressing chamber, be provided with on blank pressing subassembly and the spacing base contact site and be used for the extruded lower holding down piece of graphite seal assembly, when graphite seal assembly put into spacing chamber, the lower holding down piece of blank pressing subassembly can contact the extrusion to the protruding strip of graphite seal assembly.
2. The radial sealing device for a gas turbine starter as claimed in claim 1, wherein: the limiting base comprises a first limiting support, a second limiting support, a limiting gasket and a bottom plate; the first limiting support and the second limiting support are symmetrically arranged on the bottom plate, the limiting cavity is arranged between the first limiting support and the second limiting support, a through hole is formed in the limiting cavity, a first bearing groove and a second bearing groove are respectively formed in the positions, close to the limiting cavity, of the first limiting support and the second limiting support, and the two bearing grooves form an edge pressing cavity; the limiting gasket is arranged in the bearing groove.
3. The radial sealing device for a gas turbine starter as claimed in claim 2, wherein: the distance formed by the first bearing groove and the second bearing groove is not less than the length of a contact part of the blank pressing assembly and the blank pressing cavity.
4. The radial sealing device for a gas turbine starter as claimed in claim 3, wherein: accept the groove and be the rectangular channel, spacing gasket is the shape with blank holder subassembly looks adaptation, spacing gasket sets up and is accepting between groove and the blank holder subassembly.
5. The radial sealing device of a gas turbine starter as claimed in claim 4, wherein: the blank pressing assembly comprises a stress column and a bearing plate, the stress column is arranged at one end of the bearing plate, and the lower pressing piece is arranged on the end face, far away from the stress column, of the bearing plate.
6. The radial sealing device for a gas turbine starter as claimed in claim 5, wherein: the stress column is arranged at the center of the length direction of the bearing plate.
7. The radial sealing device for a gas turbine starter of claim 6, wherein: the lower pressing piece is at least arranged into 2 pieces on the end face of the bearing plate, the lower pressing piece is arranged into an arc-shaped structure, and the radian of the lower pressing piece is matched with that of the protruding strips of the graphite sealing assembly.
8. The radial sealing device for a gas turbine starter of claim 7, wherein: the lower pressing sheets are symmetrically arranged along the center of the bearing plate.
9. The radial sealing device for a gas turbine starter as claimed in claim 8, wherein: the sum of the height of the lower pressing sheet and the height of the shell is 0.4mm in the difference with the height of the limiting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511117.2U CN217422189U (en) | 2022-06-16 | 2022-06-16 | Radial sealing device of gas turbine starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511117.2U CN217422189U (en) | 2022-06-16 | 2022-06-16 | Radial sealing device of gas turbine starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217422189U true CN217422189U (en) | 2022-09-13 |
Family
ID=83173901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221511117.2U Active CN217422189U (en) | 2022-06-16 | 2022-06-16 | Radial sealing device of gas turbine starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217422189U (en) |
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2022
- 2022-06-16 CN CN202221511117.2U patent/CN217422189U/en active Active
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